CSS current work & how to participate

CSS spec­i­fi­ca­tions

This page contains a list of all completed specifications and
drafts by the CSS WG
(formerly “CSS & FP WG”).
If you want to follow the development of CSS3, this is the place to
start. You have ideas? Contributions? See “If you want to help” on this page.

If you are sending comments on a specific CSS module, please
prefix the subject of your message with the appropriate spec code
(given in the “Status of this document” section) in brackets,
e.g. “[css3-flexbox] error in margin calculations”. This will
help the editors find and track your comments.

About the test suites

The CSS working group intends to spend a lot of time on
developing the CSS test
suites along with the CSS specifications. By providing a test
suite for each module as soon as the module is published, we hope
not only that CSS3 implementations will conform to the
specification much earlier, but also that people will have an
easier time understanding the formal text of the spec.

The test suites have their own archived
mailing list public-css-testsuite@w3.org.
Please send error reports, test case submissions, and any other
questions and comments about the CSS test suites there. Elika
Etemad maintains the CSS Testing
Wiki with more info for contributors.

Mark-up con­ven­tions

The source mark-up of the specifications follows certain conventions (which is useful for
automatic processing).